Project Name:

Project Details: Louisville Metro Adaptive Signal System

Description:

This project allows signal timing optimization based on live traffic demands. In addition, this project will use video to analyze traffic flow at intersections and adjust timing based on historical data obtained by the video. This video can also be utilized for traffic counts. Currently, one system exists on KY-1747 Hurstbourne, 5 signals from Linn Station to Bluegrass.

Status:

Existing

Timeframe:

Short

Geographic Scope:

Louisville metro area

Service Scope

Stakeholders:

Service Packages:

Project Inventory:

Collect Traffic Surveillance

• The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for traffic data.
• The center shall maintain a database of surveillance equipment and sensors and associated data (including the roadway on which they are located, the type of data collected, and the ownership of each )
• The center shall respond to control data from center personnel regarding sensor and surveillance data collection, analysis, storage, and distribution.
• The center shall distribute road network conditions data (raw or processed) based on collected and analyzed traffic sensor and surveillance data to other centers.
• The center shall monitor, analyze, and distribute traffic images from CCTV systems under remote control of the center.
• The center shall monitor, analyze, and store traffic sensor data (speed, volume, occupancy) collected from field elements under remote control of the center.

Field Management Stations Operation

• The filed management station shall pass data provided by the center to local field devices and report data from the field devices back to the center.
• The field management station shall accept configuration information from the center.

Roadway Signal Controls

• The field element shall return traffic signal controller fault data to the center.
• The field element shall return traffic signal controller operational status to the center.
• The field element shall report current preemption status to the center.
• The field element shall report the current signal control information to the center.
• The field element shall provide the capability to notify the traffic management center of pedestrian calls and pedestrian accommodations.
• The field element shall respond to pedestrian crossing requests by accommodating the pedestrian crossing.
• The field element shall control traffic signals under center control.
• The field element shall report current transit priority status to the center.

TMC Signal Control

• The center shall remotely control traffic signal controllers.
• The center shall maintain traffic signal coordination including synchronizing clocks throughout the system.
• The center shall manage boundaries of the control sections used within the signal system.
• The center shall implement control plans to coordinate signalized intersections based on data from sensors.
• The center shall manage (define, store and modify) control plans to coordinate signalized intersections, to be engaged at the direction of center personnel or according to a daily schedule.
• The center shall collect traffic signal controller fault data from the field.
• The center shall collect traffic signal controller operational status and compare against the control information sent by the center.
• The center shall accept notifications of pedestrian calls.

Traffic Equipment Maintenance

• The center shall support an interface with a map update provider, or other appropriate data sources, through which updates of digitized map data can be obtained and used as a background for traffic maintenance data.
• The center shall exchange data with maintenance centers concerning the reporting of faulty equipment and the schedule/status of their repair. Information exchanged includes details of new equipment faults, and clearances when the faults are cleared.
• The center shall collect environmental sensor equipment fault data and send to the maintenance center for repair.
• The center shall collect environmental sensor operational status.
• The center shall collect and store CCTV surveillance system (traffic, pedestrian) fault data send to the maintenance center for repair.
• The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) fault data and send to the maintenance center for repair.
• The center shall collect and store CCTV surveillance system (traffic, pedestrian) operational status.
• The center shall collect and store sensor (traffic, pedestrian, multimodal crossing) operational status.